The unpac monorepo manager self-hosting as a monorepo using unpac

travis: remove redundant entry from build matrix

-1
-1
vendor/opam/bigstringaf/.travis.yml
··· 10 10 - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.04" 11 11 - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.05" DEPOPTS="mirage-xen-posix" 12 12 - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.06" DEPOPTS="ocaml-freestanding" 13 - - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.06" DEPOPTS="ocaml-freestanding" 14 13 - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.07" DEPOPTS="ocaml-freestanding"